Herald (doorbell 1974)

(Collection of Judith Lebeau and Bill
Cox)

Flow Chart

Audio Diagram

Speaker and Flags

Flags and Arms

The
commission for Herald included my requirement that it respond to some
aspect of its environment. The collectors suggested that it
perform as a doorbell.
Ultimately it included not only a sound event but also events of light
and motion. The idea was that when the doorbell button was
pressed,
Herald would perform a sequence those events. The sequence of
events
depend on the configuration of the pluggable cables in the switch board.